Typewriter



March 4 1924.

J. W. MOORE TYPEWRITEH Filed April *7, 1923 3 Sheets-Sheet 1 March -4i924.

' J. w. MOORE TYPEWRITER Filed April '7, 1923 5 Sheets-Sheet 2 I @HoulaJ. W. MOORE TYPEWRITER Mmh 4 i924.

Filed April 7. 1923 3 Sheets-Sheet 3 Patented Mar. 4, 1924.

UNrrED STATI-:s

JOSEPH W. MOORE, F OBEBLIN, LOUSIANA, ASSIGNOR OF-ONE-HLF TO RIPLEY G.CORKERN, OF OBERLIN, LOUISIANA.

TYPEWRITER.

Application filed lApril 7,

To all whom t my concern:

Be it known that I, JOSEPH 7. MOORE, a citizen of the United States,residing at berlin, in the parish of Allen and Stat-e of Louisiana, haveinvented certain new and useful Improvements in Typewriters, of whichthe following is a specification, reference being had to theaccompanying. drawings.

This invention relates to improvements in typewriters and moreparticularly to improvements in carriage return mechanism fortypewriters. l

An important object of the invention is to provide in combination withthe typewriter a continuously running motor and means whereby-the motormay be connected to the carriage to return the carriage upon completionof the line of typing. v

A further object of the invention is to provide a deviceof -thischaracter in which connection of the motor is operated through adepressible key conveniently arranged and in which the motor isdisconnected from the 25 carriage automatically.

A further object of the invention is to provide an automatic means fordisconnecting the carriage, serving as a positive stop to limit themovement of the carriage.

A further object of the invention is to Iprovide means whereby thereturn movenient of the carriage operates the platen of the carriage toshift the same.

A still further object of the invention is 35 to provide a device ofthis character which may be readily applied to a typewriter and when soapplied is so positioned and constructed as to in no manner interferewith the normal operation of the typewriter to l0 which it is attached.

` These and other objects I attain by the construction shown in theaccompanying drawings, wherein for the urpose of illustration is shown apreferred embodiment of i5 my invention and wherein Figure 1 is a sideelevation showing apparatus contructed in accordance with my invention,the typewriter being indicated in dotted lines.

Figure 2 is` a plan view thereof, the typewriter being similarlyindicated.

yFigure 3 is an enlarged sectional view taken through the operatingmechanism.

Figure 4 is a perspective viewshfrwing` 1923. serial N-o. 630,518.

the operating mechanism for the platen; and

Figure 5 is a perspective view showing the adjustable stop member andoperating mechanism disconnecting device.

Referring' now more particularly to the drawings, the numeral 10indicates a typewriter frame, 11 the shift-able carriage thereof and 12the platen roller ofthe carriage. ln the typewriter with which thepresent invention is disclosed a pair of rearwardly extendin arms 13 areprovided upon the platen etween the rear ends of which is disposed anotch bar 14`upon which are mounted. adjustable stop members 15 employedfor limiting' the movement of the carriage to obtain a desired spacingof typing. This type of typewriter likewise has extending from the rearof the frame 10 thereof a pair of spaced lugs 16.

' In accordance with my invention mount intermediate these lugs a rockshaft 17 having a depending arm 18 which is connected by a link 19 withone arm of a bell crank key lever 20, the opposite ,arm of which isprovided with a depressible key 21 normally held in elevated position bya spring 22. To the frame 10 ll secure supports 23 upon which is mounteda motor 24, the

armature shaft 25 of which extendsover the' rack bar and is provided atits outer end with a flange 26. This shaft has secured thereto onemember of a cone clutch 27 faciupr and in spaced relation to the flange25.

v`Likewise mounted upon the shaft 25 is a sleeve 28 provided at that endthereof next adjamt the flange 26 with a gear wheel 29 engaging theteeth of the notch bar and at its opposite end with a second member 30of the friction clutch. This sleeve is provided with an annular `gfroove81 receiving pins 32 upon the ends of arms 33 secured to the rock shaft17 and extending upwardly therefrom.

lt will be seen that by depression of the key 2i against the actionofthe spring 22. the link 19 will be moved forwardly with the resultthat the arms 33 will be thrown rearwardly, movingthe sleeve 28rearwardly and bringing the'clutch elements 27 and 30 into engagement,thus connecting the sleeve` with the motor shaft and causing thegear 29to be rotated. liy this rotation the carriage 11 will be shiftedlongitudinally7 to podistance, I secure to the shaft 17 a fourth arm`34having at its upper end a wedgeshaped extension 35 adapted forengagement with the adjustable stop'member 36 and by such engagement tobe shifted toward the rack bar.v `This shifting of the arm 54 toward therack bar causes an oscillation of the rock shaft 17, with the resultthat the clutch sections are disengaged. 'This shifting further placesthe arm. 34 so that it is directly in the path bf the stop member 36with the result that movement of the carriage is positively terminatedat the time of disconnection of the clutch.

It is well known thatI shifting of the carriage is usually accomplishedby means of a shifting lever 37 which is pivoted and which when engagedwith the hand, shifts prior to any shifting movement of the carriage.This shifting movement is in Aall typewriters with which Tam familiaremployed to shift' the platen roller 12. In the present instance lhavedisclosed the lever 37. as a bell crank leverhaving one arm adapted forengagement with the hand, as at 38, and the other arm provided with adog 39 coacting with the ratchet 40 carried by the' end of the platenroller l2. It will be obvious that when the carriage is shifted by themechanism hereinbefore described this level' will not be o erated sinceit is engaged'by the hand andpl accordingly pivot upon the carriage 11at the opposite end thereof from the lever 37 a lever 4l, one end' ofwhich is connected with the operatin end of the lever 37 by a link 42extending longitudinally of the carriage. The opposite end of this leveris bent into proximit to a stationary part of' the typewriter rame 10'and upon this part of the ty ewriterv frame and in such osition as to eengaged by the lever 41 place a stop ,memberl 43, the lever engaging tiis stop member is rotated upon its pivotr with the result that thelever' 37 is shifted as if by engagement with the hand and the platen'roller accordin ly rotated. From the foregoing it will be o vious thatby use of mechanism constructed in accordiftl incase@ ance with myinvention in combination with the typewriter,.the carriage/may be shiftled lrWithout the necessity of elevating the 'hand from the keys andtheoperating mechanism will be automatically disconnect- -ed atI theproper .time and ther platen roller shifted.` 'lt Will furthermore beobvious that this structure as. hereinbeore set' vforth capable of somechange and'- modification without materiellydeparting from thespirit 05of my invention and I accordingly do not cept sts-hereinafter claimed.

If claimrlimit mvse'lf to such specific structure ex` bar,A a motor riidly' secured -to lthe type- Writer` frame an having a -shaft extendingover the notch bar, a sleeve rotatably mounted upon the shaft andprovided upon one endwvith a gear engaging lthe teeth ofthe notch baryupon f the opposite end thereof with one element of the frictionclutch, a

second element of the friction clutch se-v cured --to said shaft,saidsleeve having a groove therein, sluftable armsvhaving pins thereonengaged 1n the groove at diametrically opposed points and key operatedmeans for shifting -said arms to move .said sleeve 1n a dlrectionbringing the clutch elements into engagement.

2. In combination with a typewriter hav-4 ing a shiftable carriageembodying anot'ch bar, .a motor rigidly secured 'to the typewriter framevand having a shaft extending over the notch bar, a sleeve rotatablymount ed upon the shaft and provided upon onel therein, shiftable armshaving pins thereon engaged in the groove rat diametrically opposedpoints, key operated means for shiftlng said arms to move said sleeve ina direc tion bringing the clutch elementsinto engagement., and automaticmeans fofshifting A the arms inan opposite `direction when thecarriagehas traveled a predetermined distance. i

l'n testimony whereof I hereunto alxix my signature.

- JOSEPH W. MOORE.

